1 files changed, 8 insertions, 0 deletions
diff --git a/tests/unit/files_test.ts b/tests/unit/files_test.ts
index 47fa03ddd..0034a8472 100644
--- a/tests/unit/files_test.ts
+++ b/tests/unit/files_test.ts
@@ -10,6 +10,8 @@ import {
 } from "./test_util.ts";
 import { copy } from "@std/streams/copy.ts";
 
+// Note tests for Deno.FsFile.setRaw is in integration tests.
+
 Deno.test(function filesStdioFileDescriptors() {
   assertEquals(Deno.stdin.rid, 0);
   assertEquals(Deno.stdout.rid, 1);
@@ -899,6 +901,12 @@ Deno.test(
   },
 );
 
+Deno.test({ permissions: { read: true } }, function fsFileIsTerminal() {
+  // CI not under TTY, so cannot test stdin/stdout/stderr.
+  using file = Deno.openSync("tests/testdata/assets/hello.txt");
+  assert(!file.isTerminal());
+});
+
 Deno.test(
   { permissions: { read: true, run: true, hrtime: true } },
   async function fsFileLockFileSync() {